package cn.baddonkey.photography.agent.config.security;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

/**
 * spring security配置
 *
 * @author ruoyi
 */
@EnableMethodSecurity(prePostEnabled = true, securedEnabled = true)
@Configuration
@Slf4j
public class SecurityConfig {
    /**
     * 自定义用户认证逻辑
     */
    @Autowired
    private UserDetailsService userDetailsService;

    /**
     * 认证失败处理类
     */
    @Autowired
    private AuthenticationEntryPointImpl unauthorizedHandler;

    /**
     * 退出处理类
     */
    @Autowired
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /**
     * token认证过滤器
     */
    @Autowired
    private JwtAuthenticationTokenFilter authenticationTokenFilter;

    /**
     * 跨域过滤器
     */
    @Autowired
    private CorsFilter corsFilter;

    /**
     * 身份验证实现
     */
    @Bean
    public AuthenticationManager authenticationManager() {
        DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
        daoAuthenticationProvider.setUserDetailsService(userDetailsService);
        daoAuthenticationProvider.setPasswordEncoder(bCryptPasswordEncoder());
        return new ProviderManager(daoAuthenticationProvider);
    }

    /**
     * anyRequest | 匹配所有请求路径 access | SpringEl表达式结果为true时可以访问 anonymous | 匿名可以访问
     * denyAll | 用户不能访问
     * fullyAuthenticated | 用户完全认证可以访问（非remember-me下自动登录） hasAnyAuthority |
     * 如果有参数，参数表示权限，则其中任何一个权限可以访问 hasAnyRole | 如果有参数，参数表示角色，则其中任何一个角色可以访问
     * hasAuthority |
     * 如果有参数，参数表示权限，则其权限可以访问 hasIpAddress | 如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问 hasRole
     * |
     * 如果有参数，参数表示角色，则其角色可以访问 permitAll | 用户可以任意访问 rememberMe |
     * 允许通过remember-me登录的用户访问 authenticated
     * | 用户登录后可访问
     */
    @Bean
    protected SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
        return httpSecurity
                // CSRF禁用，因为不使用session
                .csrf(csrf -> csrf.disable())
                // 禁用HTTP响应标头
                .headers(
                        (headersCustomizer) -> {
                            headersCustomizer
                                    .cacheControl(cache -> cache.disable())
                                    .frameOptions(options -> options.sameOrigin());
                        })
                // 认证失败处理类
                .exceptionHandling(
                        exception -> exception.authenticationEntryPoint(unauthorizedHandler))
                // 基于token，所以不需要session
                .sessionManagement(
                        session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                // 注解标记允许匿名访问的url
                .authorizeHttpRequests(
                        (requests) -> {
                            // 对于登录login 注册register 验证码captchaImage 允许匿名访问
                            requests.requestMatchers(
                                            "/user/login",
                                            "/user/register",
                                            "/v3/api-docs",
                                            "/getBlockPuzzleCaptcha",
                                            "/graph/parallel-stream/expand-translate",
                                            "/graph/parallel-stream/expand-translate/v2",
                                            "/checkBlockPuzzleCaptcha")
                                    .permitAll()
                                    .requestMatchers(
                                            HttpMethod.GET,
                                            "/",
                                            "/*.html",
                                            "/*/*.html",
                                            "/*/*.css",
                                            "/*/*.js",
                                            "/profile/**",
                                            "/default/**")
                                    .permitAll()
                                    .requestMatchers("/swagger-ui.html")
                                    .anonymous()
                                    .requestMatchers("/swagger-resources/**")
                                    .anonymous()
                                    // 除上面外的所有请求全部需要鉴权认证
                                    .anyRequest()
                                    .authenticated();
                        })
                // 添加Logout filter
                .logout(
                        logout -> logout.logoutUrl("/logout")
                                .logoutSuccessHandler(logoutSuccessHandler))
                // 添加JWT filter
                .addFilterBefore(
                        authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class)
                // 添加CORS filter
                .addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class)
                .addFilterBefore(corsFilter, LogoutFilter.class)
                .build();
    }

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }
}
